Their devil

Prologue

"Mommy, why is daddy mad at me?" The young girl who was only 7 asked her mother who couldn't bear to look at her.
"Stop calling me dad child, I am not your father and I will never become your father" the big man spat at the young girl.
She looked confused, she hadn't known what was going on. Although she was just a child she understood the world after all she was smarter than all those her age. She understood that a man and a woman had to work together to get a child. She didn't know the details but she was sure that mommy and daddy worked together to get her and her older sister but why was daddy denying her as a daughter?
"Mommy said that you and her had to work together to get me," she said while smiling cheekily. The man couldn't stand the child after all she was the child of his worst enemy, he only took her in to kill her and send her back later but her mother refused to kill her child so he had kept her as his own and eventually grew fond of the little child, but today he had finally awoken and realized who this child was. She was the end of his enemy he could kill her and he would've won this war he loved the child as his own but his greed has overcome him he shouldn't love this child anymore.
"Daddy will finally get rid of you child," he said with a smile that made the child get goosebumps.
"Victor you can't do that she's my child too," the mother said even though deep down she had wished for this child to never be born, then she wouldn't have lost her father that was killed protecting her child.
"Mommy, I think something is wrong with daddy he's scaring me," the child said with tears in her eyes afraid of what her father has become.
"Leave" the man had said to his wife, he was surprised that she had left. She had stopped him from killing this child a hundred times and she knew exactly what he was going to do.
"It's time," he said to the child.